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Intertidal Biota of Te Matuku Bay, Waiheke Island, Auckland

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Intertidal Biota of Te Matuku Bay, Waiheke Island, Auckland Tane 36: 67-84 (1997) INTERTIDAL BIOTA OF TE MATUKU BAY, WAIHEKE ISLAND, AUCKLAND Bruce W. Hayward, A. Brett Stephenson, Margaret S. Morley, Nancy Smith, Fiona Thompson, Wilma Blom, Glenys Stace, Jenny L. Riley, Ramola Prasad and Catherine Reid Auckland Museum, Private Bag 92018, Auckland SUMMARY Ninety-seven Mollusca (7 chitons, 52 gastropods, 38 bivalves), 33 Crustacea (8 amphipods, 4 barnacles, 18 decapods) 10 Echinodermata (3 echinoids, 3 asteroids, 3 ophiuroids, 1 holothurian), 21 Polychaeta and 31 other animals and plants are recorded from Te Matuku Bay, on the south-east corner of Waiheke Island, Auckland. The intertidal communities and their constituent fauna and flora are similar to those encountered around the middle and upper Waitemata Harbour, except for the abundance at Te Matuku Bay of the tube worm Pomatoceros caeruleus. This species used to be equally abundant on Meola Reef but has now disappeared from there. The Pacific oyster is well established on the rocks around Te Matuku Bay, but other introduced organisms (Musculista senhousia, Limaria orientalis, Codium fragile tomentosoides) are present in only small numbers. Keywords: New Zealand; Waiheke Island; Te Matuku Bay; intertidal ecology; Mollusca; Polychaeta; Crustacea; Amphipoda; Decapoda. INTRODUCTION Te Matuku Bay (latitude 36°50'S, longitude 175°08'E) lies on the sheltered south coast of Waiheke Island, near its eastern end (Fig. 1). The bay is long and relatively narrow (2.5 x 1km) and opens to the south into the east end of Tamaki Strait. Both sides of the bay rise relatively steeply to 60-100m high ridge lines. These adjacent slopes are mostly in regenerating scrub, although partly in grazed grassland and partly in mature coastal forest (middle point on eastern side). Several streams draining catchments with a similar mix of uses flow into the head of the bay. Around the edge of the bay, dwellings and baches are restricted to Pearl Bay in the east and two farm cottages on the west side near the mouth. An old oyster farm is present on the sand flats on the west side of the bay. 67 Fig. 1. Te Matuku Bay lies at the south-eastern end of Waiheke Island, inner Hauraki Gulf. 68 The southern quarter of the bay (c. 70ha) is subtidal with a coastline of greywacke rocks and gravel beaches. The middle half of the bay (c. 150ha) is intertidal muddy and shelly sand flats fringed by sandy pebble gravel beaches at high tide level. Muddy mangrove forest covers the remaining quarter (c. 50ha) at the head of the bay. Two sandy shell spits have built out across embayments on the eastern side of the muddy sand flats. The larger provides roosting areas for waders and supports nesting New Zealand dotterel. The Te Matuku Bay area was chosen for study at the invitation of the Royal Forest and Bird Society, who are investigating the site as a possibility for a marine reserve application. Our study was designed to document the intertidal biota of their selected area, which also includes a subtidal portion extending out through the mouth of the bay to Passage Rock. This paper records the biota that was found intertidally in Te Matuku Bay and the rocky points on either side, on a five hour Auckland Museum field trip by most of the authors during a spring low tide in September 1996. Field work included mapping the distribution of the major intertidal communities (Fig. 1), extensive searching of the range of intertidal habitats present in the bay, beach combing around the mid and high tide beaches and digging and dip netting in the muddy sand, especially around low tide level. All records are supported by voucher specimens in the collections of the Auckland Museum (AK). SPECIES LIST Habitat where found (Fig. 2): ir = inner bay rocks s = sand and mud flats m = mangroves ss = subtidal sea floor (wash-up) or = outer bay rocks and gravels d = only seen dead 1 = seen alive Double letter = common Molluscan nomenclature follows Spencer & Willan (1995). m s ir or ss MOLLUSCA - POLYPLACOPHORA Acanthochitona (Notoplax) violacea (Quoy & Gaimard, 1835) Acanthochitona zelandica (Quoy & Gaimard, 1835) Chiton (Amaurochiton) glaucus Gray, 1828 Cryptoconchus porosus (Burrow, 1815) 69 mangrove forest ^/ salt marsh .\ / \ v m—m shell spit ^.: x x.:x.;x..x/ \ .?X \ \ \ x^x^x^ \ \ X^xi x.;.\ x. \ .\ xi:xi:xi;xi;xi:x.N x x: x 0\V.x, x x ;: x x x.: \; x x: x. x x: x x: x x. x \\x x: x x LX M X, X A. .\, X X X . XS soft mud muddy fine sand v . \ X shelly muddy fine sand muddy shelly gravel sandy fine pebble gravel cobble gravel greywacke rocks Fig. 2. Intertidal substrates and fringe communities in Te Matuku Bay, Waiheke Island. 70 m s ir or ss Ischnochiton maorianus Iredale, 1914 1 Leptochiton inquinatus (Reeve, 1847) 1 Sypharochiton pelliserpentis (Quoy & Gaimard, 1835) 1 GASTROPODA Alcithoe arabica (Gmelin, 1791) d d Amphibola crenata (Gmelin, 1791) 11 11 Buccinulum linea tinea (Martyn, 1784) 1 Buccinulum vittatum vittatum (Quoy & Gaimard, 1833) 1 Bulla quoyii Gray, 1843 d Calliostoma pellucidum (Valenciennes, 1846) d Cellana ornata (Dillwyn, 1817) Id Chemnitzia sp. I Cominella adspersa (Bruguiere, 1789) 1 I Cominella (Josepha) glandiformis (Reeve, 1847) 11 11 Cominella maculosa (Martyn, 1784) d d Cominella (Josepha) quoyana quoyana A.Adams, 1854 d Cominella (Josepha) virgata H. & A. Adams, 1853 d Cookia sulcata (Gmelin, 1791) 1 Crepidula costata Sowerby, 1824 11 Crepidula monoxyla (Lesson, 1831) Id Dicathais orbita (Gmelin, 1791) 1 Diloma (Fractarmilla) subrostrata subrostrata (Gray, 1835) 11 1 Haminoea zelandiae (Gray, 1843) d Haustrum haustorium (Gmelin, 1791) 1 1 Lepsiella scobina (Quoy & Gaimard, 1833) 11 11 Maoricolpus roseus roseus (Quoy & Gaimard, 1834) 1 d Melagraphia aethiops (Gmelin, 1791) 11 II Murexul octogonus (Quoy & Gaimard, 1833) d Neoguraleus murdochi (Finlay, 1924) d Nerita (Melanerita) atramentosa Reeve, 1855 1 Nodilittorina antipodum (Philippi, 1847) 11 11 Nodilittorina cincta (Quoy & Gaimard, 1833) I Notoacmea elongata (Quoy & Gaimard, 1834) I Notoacmea helmsi (E.A.Smith, 1894) 11 Onchidella nigricans (Quoy & Gaimard, 1832) 11 1 11 Ophicardelus costellaris (H. & A. Adams, 1854) 1 Penion sulcatus (Lamarck, 1816) d Pleurobranchaea maculata (Quoy & Gaimard, 1832) 1 Potamopyrgus estuarinus Winterbourn, 1971 Id Serpulorbis zelandicus (Quoy & Gaimard, 1834) d Sigapatella novaezelandiae (Lesson, 1831) 1 Siphonaria australis Quoy & Gaimard, 1833 1 1 71 m s ir or ss Struthiolaria papulosa (Martyn, 1784) d Struthiolaria (Pelicaria) vermis vermis (Martyn, 1784) d d Taron dubius (Hutton, 1878) d Trochus (Coelotrohus) tiaratus Quoy & Gaimard, 1834 d Trochus (Thorista) viridis Gmelin, 1791 1 Turbo smaragdus Gmelin, 1791 11 1 11 11 Xymene plebeius (Hutton, 1873) d Xymene traversi (Hutton, 1873) 1 Zeacolpus (Stiracolpus) pagoda pagoda (Reeve, 1849) d Zeacumantus lutulentus (Kiener, 1841) 1 11 Zeacumantus subcarinatus (Sowerby, 1855) 11 1 Zebittium exile (Hutton, 1873) 1 Zegalerus tenuis (Gray, 1867) d Zemitrella chaova (Reeve, 1859) d BIVALVES Anomia trigonopsis Hutton, 1877 I Arthritica bifurca (Webster, 1908) 11 d Atrina pectinata zelandica (Gray, 1835) 1 1 Austrovenus stutchburyi (Gray, 1828) 11 Cleidothaerus albidus (Lamarck, 1819) 11 Corbula (Caryocorbula) zelandica Quoy & Gaimard, 1835 1 d Crassostrea gigas (Thunberg, 1793) 11 1 11 11 Cyclomactra ovata (Gray, 1843) 1 Diplodonta (Zemysina) striatula (Finlay, 1926) d Dosina zelandica Gray, 1835 dd Dosinia (Phacosoma) subrosea (Gray, 1835) 1 d Felaniella (Zemysia) zelandica (Gray, 1835) 1 d Gari (Psammobia) lineolata (Gray, 1835) d Gari (Gobraeus) stangeri (Gray, 1843) dd Hiatella arctica (Linne, 1767) 1 lrus (Notirus) reflexus (Gray, 1843) d Leptomya retiaria retiaria (Hutton, 1885) d Limaria orientalis (A.Adams & Reeve, 1850) 1 Macomona liliana (Iredale, 1915) 11 Modiolarca impacta (Hermann, 1782) 1 Musculista senhousia (Benson, 1842) d 1 Myadora striata (Quoy & Gaimard, 1835) d Myllita (Zemyllita) stowei (Hutton, 1873) d Mytilus edulis aoteanus Powell, 1958 d Nucula hartvigiana Pfeiffer, 1864 11 d Paphies australis (Gmelin, 1791) 11 Paphies subtriangulata (Gray, 1828) d 72 m s ir or ss Pecten novaezelandiae Reeve, 1853 d Perna canaliculus (Gmelin, 1791) 1 11 Peronaea gaimardi (Iredale, 1915) d Protothaca crassicosta (Deshayes, 1835) d Ruditapes largillierti (Philippi, 1849) d Soletellina siliquens Willan, 1993 d Tawera spissa (Deshayes, 1835) d Tiostrea chilensis lutaria (Hutton, 1873) d Venericardia (Purpurocardia) purpurata (Deshayes, 1854) d Xenostrobus pulex (Lamarck, 1819) 11 11 ECHINODERMATA - ECHINOIDEA Echinocardium cordatum (Pennant, 1777) d Evechinus chloroticus (Valenciennes, 1846) 1 Fellaster zelandica (Gray, 1855) d d ASTEROIDEA Allostichaster polyplax (Muller & Troschel, 1844) 1 Coscinasterias calamaria Verrill, 1864 1 1 Patiriella regularis (Verrill, 1867) 11 1 OPHIUROIDEA Amphiocnida pilosa (Lyman, 1882) 1 Ophionereis fasciata Lutken, 1859 1 Ophiopteris antipodum Smith, 1877 1 HOLOTHUROIDEA Trochodota dendyi Mortensen, 1925 I ANNELIDA - POLYCHAETA Aedicira sp. 1 Aglaophamus macroura (Schmarda, 1861) 1 Armandia maculata (Webster, 1884) 11 Axiothella quadrimaculata Augener, 1914 1 Eteone sp. 1 Euchone sp. 11 Glycera americana Leidy, 1855 I Glycera lamelliformis Mcintosh, 1885 1 Glycera lamellipodia Knox, 1960 I Glycinde dorsalis Ehlers, 1904 11 Heteromastus sp. 11 Magelona papillicornis Muller, 1858 1 Maldanidae 11 73 m s ir or ss Nereidae 1 l Orbinia papulosa (Ehlers, 1907) 1 Paraboccardia sp. 11 Pectinaria australis Ehlers, 1904 1 Polynoidae 11 Pomatoceros caeruleus (Schmarda, 1861) 11 11 11 Prionospio sp. 11 Streblosoma
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